Bitmap/Image to Cursor

[James Hancock]

I'm dynamically generating a cursor based on position (Cross hair with some
other information about where it is on the screen)

Right now I'm creating a Bitmap and putting everything on it, but the
problem is that I can't make it the current cursor.

I understand that the Cursor class is monochrome only, but I can't find a
way to save a bitmap as a cursor file (or stream).

Anyone have any ideas?

Thanks,
James Hancock

 

[Ken Tucker [MVP]]

Hi,

Dim bm As New Bitmap("c:\myImage.bmp")

Dim ptrCur As IntPtr = bm.GetHicon

Dim cur As Cursor

cur = New Cursor(ptrCur)



Ken

 

[James Hancock]

Ok, so that crashed my computer with a blue screen twice if the image is
over 32X32 in size....

Anyone know how to use the LoadCursor API function in this case? Then I can
use colors too which would be better because text looks horrible in 1bpp.

Thanks,
James Hancock

 

[Ken Tucker [MVP]]

Hi,

Wow I created a color cursor bigger than my form that and it didn't
crash my computer. What version of windows are you using?

Dim img As Bitmap

Dim wc As New System.Net.WebClient

img = New
Bitmap(wc.OpenRead("http://images.ibsys.com/orlc/images/weather/auto/doppler_640x480.gif"))

Me.Cursor = New Cursor(img.GetHicon)




Ken

 

[Crirus]

Works for me too
How to set the hot spot for such a cursor?

 

[Crirus]

By the way, I asked this question how to create a colored cursor 10 times
last 3 months... finally a solution

 

[James Hancock]

Windows XP SP1. It's an ATI Video driver bug though.

 

[James Hancock]

What solution?

The one below crashes any computer with the latest ATI Radeon drivers
installed, so I wouldn't call that a solution.

From what I can tell, the only way to do this right is to use a WinAPI call.
Anyone have a sample on how to do it? When I use LoadCursor I get a return
value of 0.

Thanks,
James Hancock

 

[Crirus]

Any ideea about hot spot?

 

[Crirus]

As a conclusion is save to use this technique to design custom colored
cursors as cursors from resources are black/white (Doh)?

 

[James Hancock]

The solution is to use the Windows API to load the Icon. I just have yet to
find a good sample in any language to figure out how to do it.

So if anyone has one, please let me know.

James Hancock